alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET WEB_SPECIFIC_APPS Possible DoubleQlik RCE via Path Traversal (CVE-2023-41266)"; flow:established,to_server; http.method; content:"POST"; http.header; content:"X-Qlik-"; fast_pattern; http.uri.raw; content:"/resources/qmc/fonts/"; startswith; content:".ttf"; endswith; reference:url,praetorian.com/blog/doubleqlik-bypassing-the-original-fix-for-cve-2023-41265/; reference:cve,2023-41266; classtype:web-application-attack; sid:2048366; rev:1; metadata:affected_product Qlik_Sense_Enterprise, created_at 2023_09_29, cve CVE_2023_41266, deployment Perimeter, deployment Internal, confidence High, signature_severity Major, tag CISA_KEV, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_09_29, reviewed_at 2023_09_29, mitre_tactic_id TA0007, mitre_tactic_name Discovery, mitre_technique_id T1083, mitre_technique_name File_And_Directory_Discovery; target:dest_ip;)